And I have no idea what to do with the water over night. The chickens are pretty easy to deal with as they wake up around 6:30-7 and it's not hard to wake up and put some warm water in there but I also have geese and this is the bigger problem. They constantly drink. How do you guys prevent the water from freezing over the night? I can't figure this out. The coop doesn't have access to electricity. The night temperatures will be as low as -10C (~14F). As a side question, will the chickens and geese handle this temperature? The rooms in which they sleep are made out of brick and are pretty small so I figure they can make their own heat.